Radiator.



Y No. 7|6,228.v Patented Dee. I6, i902.

` G. C. HAWKINS.

HADIATDB.

(Application med New. 229l 1897.)

QN? Model.)

u j y@ n Kamm U wvwww @fr www Nl )LN e GARDNER C. HAWKINS, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO BOSTON RADIATOR COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

SPECIFICATION forming part of Letters Patent No. 716,228, dated December 16, 1902.

Application tiled November 29, 1897. Serial No. 660,046. (No model.)

To @ZZ whom t may concern:

Be it known that I, GARDNER C. HAWKINS, of Boston, in the county of Suiolk and State of Massachusetts, have invented certain new and useful Improvements Vin Radiators, of

which the following is a specification. I This invention has for its object to provide a steam or hot-water radiator comprising a series of independent radiating loops or chaml lo bers arranged in a group, and a supporting `and'heat-conducting pipe common to all the chambers and constitutinga section ofa riserpipe or steam-main, the arrangement being such that the chambers are adapted to receive the heating medium from one end of said pipe and discharge it into the other end, each chamber being adapted to be closedto the heating medium, so that the heat maybe regulated by making one or more of the chamzo bers inoperative.

The invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings,l forming a part of this specilication, Figure l represents a longitudinal vertical section of a radiator embodying my invention. Fig. 2 represents a section on line 2 2 of Fig. l. Fig. 3 represents an edge elevation of a radiator embody- 3o ing my invention, part being shown as a section taken on the line 3 3 of Fig. l.

The same reference characters indicate the same parts in all the figures. My improved radiator comprises a substantially vertical trunk or conduit a, having at its upper and lower ends coupling members a a', whereby it may be connected at its lower end to a supplying riser-pipe section l) and at its upper end to a delivering riser-pipe 4o section b', said members ct being'shown in this case as internally screw-threaded sockets formed on the ends of the conduit ct. The conduit a and riser-pipe sections b b' constitute parts ot a continuous riser-pipe extending vertically through the building from the source of supply of the heating medium to the highest radiator in the series, the said i riser-pipe serving also to conduct the water of condensation back to the boiler.

a? represents a central radiating chamber or loop, connected at its upper and lower portions with the upper and lower portions of the trunk or conduit a bybranch conduits a3 a3, 4which provide supporting connections between the loop and the conduit 0 the loop having two ports a3@ ago communicating with said branch conduits, one located at the highest and the other at the lowest part of the loop, so that neither air nor water of condensation can accumulate in the loop. 'Ihe form of the loop a2 and the arrangement of the ports and branch conduits a3 a3 is such that the heating medium entering the lower end of the conduit ct from the supplying-section l) passes directly into the lowest portion of the loop a2 upwardly through the latterand back from the highest portion of the loop into the upper portion of the conduit a. The heating medium is adapted by the direct communication between the lower end of the loop and the supplying pipe-section b to pass upward through the loop and through the conduit et simultaneously.

The form and construction of the loop and of the cond uit CL may be variously modified so long as the conduit is adapted to form a section of a main vertical riser-pipe supplying a series of radiators, and the loop is connected at its highest and lowest portions with the conduit, so that the heating medium can circulate through the loop in the manner de- In Figs. l and 2 I show the loop and conduit made as a casting, said parts being integral with each other, the loop having longitudinal air passages a4 a4 extending through it, and internal vertical webs a5 a5 connecting its side walls. The bottom of the loop a2 is preferably inclined, as shown in Fig. l, so that Water ot' condensation accumulating in the loop will escape from it into the conduit.

c c represent valves located i'n the branch conduits or'ports'a3 a3 and adapted to open and close the same. I prefer to couple togethersaid valves by means of a connecting rod or device c', here shown as having socketed ends engaging squared portions of the stems of the valves c c. The upper valve is provided with a handle c2, and the connecting device c enables the two valves to be operated in unison by said handle. It will be seen that the location of the valves c c is such that they do not affect the continuity of the conduit a, the latter remaining continuously ICO open to serve as a part of the main vertical conduit above described.

aio d20 represent side loops or chambers located at opposite sides ot' the central loop d2. Each of said side loops is provided with ports e30, arranged like the ports of the central loop, said ports being connected with the upper and lower portions of the conduit a by suitable means, such as laterally-projecting nipples ff, Figs. l and 2, which have a steamtight engagement with chambersff, formed on the side loops (L20 d20. The loops d20 may be of the same general construction as the loop 0.2, the only difference in construction here shown being that theloops d20 are provided with the chambers f', arranged to be connected with the end portions of the conduit a. The ports e30 of each side loop have Valves c c, which may be connected and operated simultaneously like the valves of the central loop. It is obvious that any other described number of the side loops 020 may be employed.

The heating medium may pass downwardly, entering the radiator through the pipe-section b' anbd passing therefrom through the sectlon It will be observed that my improved radiator comprises a group of radiating loops or chambers, which are supported by a single conduit or riser-pipe, said pipe delivering the heating medium to and receiving it from all theloops. The system ot' valves c c e11- ables the heating medium to be shut off from either radiating-chamber, thus enabling the heat to be graduated to a nicety by making one or more of the radiating-chambers inoperative.

I claiml. A radiator comprising a plurality of independent radiating chambers or loops arranged in a group, each having two ports or passages, one at its upperand the other at its lower end, a riser-pipe section common to all the radiating-chambers, and connections between the upper and lower portions of the riser-pipe section and the corresponding portions of the radiating-chambers, whereby the chambers are supported from the'riser-pipe section, said connections constituting branch cond uits connecting the upper and lower portions of the riser-pipe section with the upperv and lower ports of the radiating-chambers whereby a heating medium entering one end of the pipe-section is enabled to ilow from the pipe-section into all the radiating-chambers through one series of ports and from the chambers back to the pipe-section through the other series of ports.

2. A radiator comprising a plurality of independent radiating chambers or loops arranged in a group, each having two ports or passages, one at its upper and the other at its lower end, a riser-pipe section common to all the radiating-chambers, connections between the upper and lower portions of the riser-pipe section and the corresponding portions of the radiating-chambers, whereby the chambers are supported from the riser-pipe section,said connections constituting branch conduits connecting the upper and lower portions of. the riser-pipe section with the upper and lower ports of the radiating-chambers, whereby a heating medium entering one end ofthe pipesection is enabled to flow from the pipe-section into all the radiatingchambers through one series of ports, and from the chambers back to the pipe-section through the other series of ports, and Valves controlling said ports, whereby either chamber may be shut o from the riser-pipe section and made inoperative.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 22d day of November, A. D. 1897.

GARDNER C. HAWKINS.

Witnesses:

C. F. BROWN, A. D. HARRISON. 

